78 lines
2.4 KiB
Diff
78 lines
2.4 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-add-index.patch
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;; Update gdb-add-index.sh such that, when the GDB environment
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;; variable is not set, the script is smarter than just looking for
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;; 'gdb' in the $PATH.
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;;
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;; The actual search order is now: /usr/bin/gdb.minimal, gdb (in the
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;; $PATH), then /usr/libexec/gdb.
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;;
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;; For the rationale of looking for gdb.minimal see:
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;;
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;; https://fedoraproject.org/wiki/Changes/Minimal_GDB_in_buildroot
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;;
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;;=fedora
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diff --git a/gdb/contrib/gdb-add-index.sh b/gdb/contrib/gdb-add-index.sh
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--- a/gdb/contrib/gdb-add-index.sh
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+++ b/gdb/contrib/gdb-add-index.sh
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@@ -16,14 +16,52 @@
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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-# This program assumes gdb and objcopy are in $PATH.
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-# If not, or you want others, pass the following in the environment
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-GDB=${GDB:=gdb}
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+# This program assumes objcopy and readelf are in $PATH. If not, or
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+# you want others, pass the following in the environment
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OBJCOPY=${OBJCOPY:=objcopy}
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READELF=${READELF:=readelf}
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myname="${0##*/}"
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+# For GDB itself we need to be a little smarter. If GDB is set in the
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+# environment then we will use that. But if GDB is not set in the
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+# environment then we have a couple of options that we need to check
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+# through.
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+#
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+# Our default choice is for /usr/bin/gdb.minimal. For an explanation
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+# of why this is chosen, check out:
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+# https://bugzilla.redhat.com/show_bug.cgi?id=1695015
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+# https://fedoraproject.org/wiki/Changes/Minimal_GDB_in_buildroot
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+#
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+# If gdb.minimal is not found then we look for a 'gdb' executable on
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+# the path.
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+#
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+# And finally, we check for /usr/libexec/gdb.
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+#
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+# If none of those result in a useable GDB then we give an error and
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+# exit.
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+if test -z "$GDB"; then
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+ for possible_gdb in /usr/bin/gdb.minimal gdb /usr/libexec/gdb; do
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+ if ! which "$possible_gdb" >/dev/null 2>&1; then
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+ continue
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+ fi
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+
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+ possible_gdb=$(which "$possible_gdb")
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+
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+ if ! test -x "$possible_gdb"; then
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+ continue
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+ fi
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+
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+ GDB="$possible_gdb"
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+ break
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+ done
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+
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+ if test -z "$GDB"; then
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+ echo "$myname: Failed to find a useable GDB binary" 1>&2
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+ exit 1
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+ fi
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+fi
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+
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dwarf5=""
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if [ "$1" = "-dwarf-5" ]; then
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dwarf5="$1"
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